Fireproof building



H. SORENSEN FIREPROOF BUILDING Filed Feb. 6, 1926 Sept. 6 1927;

Patented Sept. 6, 1927.

Uirsn ear FIREPROOF BUILDING.

Application fi1ed February 6, 1926.

I have described certain modificationsin my application #73,717, filed December 7th, 1925.

I am, however,- desirous of applying for a patent on certain other modifications of my said invention, which I omitted to do in my said application #723,717.

In my said application #73,717 I described the sense, or spirit, of my invention, which consists in the application of means, in the construction of fireproof buildings, whereby I put the reinforcements into tension before I lay the fireproof materialin said reinforcements.

In the accompanying drawings I have illustrated the said modifications, upon which I, herein, apply for a separate patent.

In said drawings Fig. 1 is a plan view of my invention;

Fig. 2 is an enlarged fragmental section of Fig. 1 taken at aa; and

Fig. 3 is an enlarged fragmental section of Fig. 1 taken at bb.

In the drawings similar numerals indicate similar parts.

Fig. 1 is a plan View of my invention in which reinforcements 1 have, at their one end, hook 2 which grips the beam flange 4, while the other end of reinforcements 1 have an upwardly extending flange or hook 9, which I attach to stretching bar 10 in the manner which I will now describe. A tightening device 6 has, at its one end, hook 7 which grips over flange 4 of beam 3. At

' the other end of tightening device 6 there is an upwardly extending flange or hook 8. Both tightening device 6, and the upwardly extending flange 9 of reinforcement 1, rest on the top of beam 3. Stretching bar 10 is placed between flanges 8 and 9. Wedges 5 are placed between hooks 7 and flanges 4;. All of reinforcements 1 are, at their one end,

Serial No. 86,539.

hooked to flange 4 of beam 3, While the other endsv of reinforcements to the stretching bar 10 as described. By-

1 are attached using stretching bar 10 I can put the reinforcements 1 into tension in groups, whenever that is found advisable to do, instead of wedging every single member of reinforcements 1, due to the fact that the stretching bar 10 will tighten all of the reinforcement members 1 when wedges 5 are driven. After reinforcements 1 are put into tension, as described, the infilling' of the fireproof material takes place. All'the described parts, in tension, are at all times held in place by the fireproof material infilling (not shown). Parts 1, 2, 5, 6, 7, 8, 9 and 10 are, preferably, made of steel.

My invention offers great advantages due to the fact that the reinforcements are put into tension before the fireproof material is filled around the said reinforcements.

Other modifications may be made without departing from the spirit of my invention- I claim stretching bar attached to the other end of I said reinforcements, means connecting said bar with the other of said beams, and wedges adapted to draw and lock said means to said other beam.

HENRY SORENSEN. 

